You will come across many movies that deal with human emotion, grief and at the end ray of hope in the darkest of cloud but not like this one does. Jake again shined and even brighter by acting with his body and face and expressing a tsunami of human feeling.
Demolition can give you a sigh of relief if you are hiding that emotion within you. The negligence you give when you have something and crave for answers when you lose it, you cant even cry, still. When you want to rip everything apart just to look what's inside, tore everything that reminds you of them and by doing so you might fool everyone but not yourself.
And...at the end everything you hate and curse right now will be okay, you will be okay.